75630740 has 24 divisors (see below), whose sum is σ = 160286280. Its totient is φ = 29973888.

The previous prime is 75630727. The next prime is 75630749. The reversal of 75630740 is 4703657.

It can be written as a sum of positive squares in 4 ways, for example, as 17322244 + 58308496 = 4162^2 + 7636^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75630697 and 75630706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75630749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15167 + ... + 19526.

It is an arithmetic number, because the mean of its divisors is an integer number (6678595).

Almost surely, 2^75630740 is an apocalyptic number.

It is an amenable number.

75630740 is an abundant number, since it is smaller than the sum of its proper divisors (84655540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75630740 is a wasteful number, since it uses less digits than its factorization.

75630740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34811 (or 34809 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 75630740 is about 8696.5935859968. The cubic root of 75630740 is about 422.8952267301.

The spelling of 75630740 in words is "seventy-five million, six hundred thirty thousand, seven hundred forty".